Agnes of Baden, Countess of Holstein-Rendsburg

Agnes of Baden (25 March 1408 – January 1473), was a German noblewoman member of the House of Zähringen and by marriage Countess of Holstein-Rendsburg. She married Gerhard VII, Count of Holstein-Rendsburg, and gave birth to twins whose legality was disputed and who were likely murdered.

She was a daughter of Bernard I, Margrave of Baden by his second wife Anna of Oettingen.